I endeavoured to calculate how much longer I could stay in the Custom-House, and yet go forth a man.
Although, by a seemingly careless arrangement of his heterogeneous garb, he had endeavoured to conceal or abate the peculiarity, it was sufficiently evident to Hester Prynne that one of this man’s shoulders rose higher than the other.
Then, gasping for breath, did Hester Prynne clutch the fatal token, instinctively endeavouring to tear it away, so infinite was the torture inflicted by the intelligent touch of Pearl’s baby-hand.
There are no more uses of "endeavor" in the book.
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I endeavored to get both sides to agree to a compromise.